ASTM D4811/D4811M-06(2013)e1
(Specification)Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
SCOPE
1.1 This specification covers nonvulcanized (uncured) rubber sheet made of EPDM (ethylene-propylene-diene terpolymer) or CR (polychloroprene) intended for use as watertight roof flashing exposed to the weather.
1.2 The tests and property limits used to characterize these flashing materials are specific for each classification and are minimum values to make the product fit for its intended purpose.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 In-place roof system design criteria, such as fire resistance, field seaming strength, material compatibility, and uplift resistance, among others, are beyond the scope of this specification.
1.5 The following precautionary caveat pertains to the test methods portion only, Section 8, of this specification: This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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Designation:D4811/D4811M −06(Reapproved 2013)
Standard Specification for
Nonvulcanized (Uncured) Rubber Sheet Used as Roof
Flashing
This standard is issued under the fixed designation D4811/D4811M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Units information was editorially corrected in November 2013.
1. Scope D412TestMethodsforVulcanizedRubberandThermoplas-
tic Elastomers—Tension
1.1 This specification covers nonvulcanized (uncured) rub-
D471Test Method for Rubber Property—Effect of Liquids
ber sheet made of EPDM (ethylene-propylene-diene terpoly-
D518 Test Method for Rubber Deterioration—Surface
mer) or CR (polychloroprene) intended for use as watertight
Cracking (Withdrawn 2007)
roof flashing exposed to the weather.
D573Test Method for Rubber—Deterioration in an Air
1.2 The tests and property limits used to characterize these
Oven
flashing materials are specific for each classification and are
D624Test Method for Tear Strength of Conventional Vul-
minimum values to make the product fit for its intended
canized Rubber and Thermoplastic Elastomers
purpose.
D1079Terminology Relating to Roofing and Waterproofing
1.3 The values stated in either SI units or inch-pound units D1149TestMethodsforRubberDeterioration—Crackingin
an Ozone Controlled Environment
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each D1204Test Method for Linear Dimensional Changes of
Nonrigid Thermoplastic Sheeting or Film at Elevated
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance Temperature
D1418 Practice for Rubber and Rubber Latices—
with the standard.
Nomenclature
1.4 In-place roof system design criteria, such as fire
D2137TestMethodsforRubberProperty—BrittlenessPoint
resistance, field seaming strength, material compatibility, and
of Flexible Polymers and Coated Fabrics
uplift resistance, among others, are beyond the scope of this
D3182PracticeforRubber—Materials,Equipment,andPro-
specification.
cedures for Mixing Standard Compounds and Preparing
1.5 The following precautionary caveat pertains to the test
Standard Vulcanized Sheets
methods portion only, Section 8, of this specification: This
G151PracticeforExposingNonmetallicMaterialsinAccel-
standard may involve hazardous materials, operations, and
erated Test Devices that Use Laboratory Light Sources
equipment. This standard does not purport to address the
G154Practice for Operating Fluorescent Ultraviolet (UV)
safety concerns associated with its use. It is the responsibility
Lamp Apparatus for Exposure of Nonmetallic Materials
of the user of this standard to establish appropriate safety and
G155Practice for Operating XenonArc LightApparatus for
health practices and determine the applicability of regulatory
Exposure of Non-Metallic Materials
limitations prior to use.
3. Classification
2. Referenced Documents
3.1 The following types are used to identify the principal
2.1 ASTM Standards:
polymer components of the flashing material (see Note 1):
3.1.1 Type I—Ethylene-Propylene-Diene Terpolymer
This specification is under the jurisdiction of ASTM Committee D08 on
(EPDM).
RoofingandWaterproofingandisthedirectresponsibilityofSubcommitteeD08.18
3.1.2 Type II—Chloroprene Polymer (CR).
on Nonbituminous Organic Roof Coverings.
Current edition approved Nov. 1, 2013. Published November 2013. Originally
NOTE 1—For definitions of polymer types, see Practice D1418. For
approved in 1990. Last previous edition approved in 2006 as D4811–06. DOI:
definitions of terms related to roofing, see Terminology D1079.
10.1520/D4811_D4811M-06R13E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4811/D4811M−06 (2013)
TABLE 2 Property Requirements for Flashing After Vulcanization
3.2 The following classes describe the ability to vulcanize
on the roof: Type I, Type II,
Class V Class V
3.2.1 Class V—Vulcanizing.
Vulcanization, at 160°C [320°F], min 20 ± 2 20 ± 2
3.2.2 Class NV—Nonvulcanizing.
Tensile Strength, min, MPa [psi] 9.0 [1305] 8.3 [1205]
Elongation, min, % 300 250
NOTE 2—Class V compounds continue to vulcanize (that is, cure) after
Tear Resistance, min, kN/m [lb/in.] 22 [125] 22 [125]
emplacement on the roof. Class NV indicates non-vulcanizable com-
Brittle Point, max, °C [°F] −45 [−49] pass −35 [−31] pass
pounds.
Tensile Set, max, % 10 10
Ozone Resistance, (7×) no cracks no cracks
4. Materials and Manufacture
Heat Aging, Air Oven
Tensile Strength, min, MPa [psi] 8.3 [1205] 8.3 [1205]
4.1 The flashing material shall be formulated from the
Elongation, min, % 200 200
Tear Resistance (Die C), kN/m [lbf/in.], 22 [125] 22 [125]
appropriate polymer type and other compounding ingredients.
min
The principal polymer in the flashing material shall be one of
Water Absorption, weight change, range, % +8, −2 +8, −2
those listed in 3.1 and greater than 95% of the total polymer.
Linear Dimension Change, max, % ±2 ±2
Weatherability, no cracks or crazing pass pass
4.2 The flashing material shall be capable of being bonded
to itself, to the roofing membrane, and to substrate for making
watertight field splices and repairs. The manufacturer or
fabricator shall recommend suitable bonding methods and
6.2.1 The thickness tolerance shall be+15% and−10% of
materials.
the specified thickness, but in no case shall the thickness be
less than the minimum listed in Table 1.
5. Physical Property Requirements
5.1 Class V flashing material shall conform to the physical
7. Workmanship, Finish, and Appearance
property requirements prescribed in Table 1 and Table 2. Class
7.1 The flashing material shall be visually free of pinholes,
NV flashing material shall conform to the physical property
particles of foreign matter, undispersed raw materials, or other
requirements prescribed in Table 1.
manufacturing defects that might affect serviceability.
5.2 Other requirements shall be agreed upon between the
7.2 If the number of irregularities appear excessive on a
purchaser and the supplier as part of the purchase contract.
sheet (or portion thereof), then its rejection should be negoti-
ated between involved parties.
6. Dimensions and Permissible Variations
7.3 Edges of the sheet shall be capable of being seamed to
6.1 The width and length shall be agreed upon between the
one another and to other roofing components without fish
purchaser and the supplier as part of the purchase contract.
mouthing.
6.1.1 The width and length tolerance shall be +3 %
and−0%.
8. Test Methods
6.2 Sheet thicknesses greater than minimum shall be agreed
8.1 Thickness—Test Methods D412.
upon between the purchaser and the supplier as part of the
8.2 Green Strength:
purchase contract.
8.2.1 Test a fresh sample manufactured within one week.
8.2.2 ConditionType I material at 23 6 2°C [73 6 4°F] for
a minimum of 1 h and a maximum of 8 h before proceeding
TABLE 1 Property Requirements for Flashing Before
with the testing.
Vulcanization
8.2.3 Decrystallize Type II material by placing in a circu-
Type I, Type I, Type II,
Class V Class NV Class V
lating air oven at 70 6 2°C [158 6 4°F] for 15 min. After
Thickness, min, mm [in.] 1.4 [0.055] 1.4 [0.055] 1.4 [0.055]
removal from the oven, condition at 23 6 2°C [73 6 4°F] for
Green Strength Modulus
172-1725 172-1725 172-517
a minimum of 1 h and a maximum of 8 h before proceeding
100 % at 23°C [73°F] kPa
[25-250] [25-250] [25-75]
[psi]
with the testing.
Elongation (Ultimate), min, % 400 400 400
8.2.4 After conditioning, die out a 13-mm [0.5-in.] dumb-
Modulus 100 % at 50°C 83 [12] 83 [12] 83 [12]
bell(DieA)anddeterminethemodulusat100%extensionand
[122°F] kPa [psi]
Elongation (Ultimate), min, % 200 200 200
the ultimate elongation at 23 6 2°C [73 6 4°F] in accordance
Shelf Stability:
with Test Methods D412.
Mo
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